3 Tutorials that teach Introduction to Quadratic Equations
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Introduction to Quadratic Equations

Introduction to Quadratic Equations

Author: Anthony Varela

This lesson covers an introduction to quadratic equations.

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Key Formulas

S tan d a r d space F o r m colon space y equals a x squared plus b x plus c

V e r t e x space F o r m colon space y equals a left parenthesis x minus h right parenthesis squared plus k

F a c t o r e d space F o r m colon space y equals a left parenthesis x minus x subscript 1 right parenthesis left parenthesis x minus x subscript 2 right parenthesis

Q u a d r a t i c space F o r m u l a colon thin space x equals fraction numerator negative b plus-or-minus square root of b squared minus 4 a c end root over denominator 2 a end fraction


Terms to Know
  • parabola

    the shape of a quadratic equation on a graph; it is symmetric at the vertex

  • quadratic

    a second degree polynomial, with an x-squared term as its highest degree term

  • vertex (of a parabola)

    the maximum or minimum point of a parabola located on the axis of symmetry